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7 Common Data Structures and Algorithms Interview Questions
Rating: 3.4 out of 5(4 ratings)
1,080 students

7 Common Data Structures and Algorithms Interview Questions

Common Data Structures and Algorithms Interview Questions
Last updated 10/2024
English

What you'll learn

  • Understand essential data structures and their real-world applications (e.g., arrays, linked lists, trees).
  • Solve algorithmic problems efficiently using techniques like recursion, sorting, and searching.
  • Identify time and space complexities with Big-O analysis for optimized code.
  • Ace technical interviews with hands-on practice on 10 common DSA interview questions.

Course content

1 section8 lectures1h 57m total length
  • How to Reverse a Singly Linked List9:49

    Learn to reverse a singly linked list by using three pointers—previous, current, and next—to flip directions so the head becomes the tail and the tail points to null.

  • The Balancing Parentheses Problem16:01
  • Generating Binary Numbers Using a Queue9:52
  • Validating a Binary Search Tree22:31
  • Finding Duplicates in an Array8:36

    Identify duplicates in an array using a hash table for an efficient O(n) time solution in Python. Iterate the array, check for seen numbers, and collect duplicates in a list.

  • Longest Common Subsequence Problem Part 115:30
  • Longest Common Subsequence Problem Part 313:42
  • The N Queens Problem21:29

Requirements

  • Basic programming knowledge in any language (e.g., Python, Java, or JavaScript) is helpful but not mandatory.

Description

Are you preparing for a coding interview and looking for a way to sharpen your problem-solving skills? This course, “7 Common Data Structures and Algorithms Interview Questions,” is designed to help you master the most common and essential topics tested in technical interviews. Whether you're a beginner or an intermediate developer, this course will guide you through a structured, step-by-step approach to solving real-world interview problems.

Throughout the course, you’ll explore key data structures like arrays, linked lists, stacks, queues, trees, graphs, and hash maps. You will also dive into popular algorithms, such as sorting, searching, and recursion. Each lesson emphasizes clarity, concise code, and optimized solutions, so you can focus on understanding concepts while keeping your code clean and efficient.

In addition to learning problem-solving techniques, you’ll gain insights into common patterns used by top developers. You’ll practice solving problems and learn how to analyze the time and space complexities using Big-O notation—an essential skill to ace coding interviews. With hands-on exercises, quizzes, and coding challenges, this course will equip you with the confidence to solve interview questions efficiently and effectively, even under pressure.

By the end of this course, you’ll not only understand how to implement and apply core data structures and algorithms but also develop the mindset needed to approach complex problems methodically. Whether you're preparing for a technical interview at a top company or looking to sharpen your coding skills, this course will give you the tools and confidence to succeed. Start your journey toward mastering coding interviews and take the next step in your software development career today!

Who this course is for:

  • Beginner to intermediate developers preparing for coding interviews.
  • Computer science students looking to reinforce their understanding with practical examples.
  • Developers seeking structured practice for technical interviews with top companies.